Discovery of Dense Subsurface Structures
Researchers presented findings at the Europlanet Science Congress, revealing dense structures beneath Mars' northern polar plains, possibly formed by ancient volcanic activity or space rock impacts.
These structures, around 300-400 kg/m3 denser than surrounding materials, were detected through gravitational mapping, offering insights into Mars' geological history.
Implications for Martian Volcanism
The Tharsis Rise, home to , shows a weak gravity anomaly suggesting a low-density pocket, potentially a giant lava plume, supporting the idea of Mars' active volcanism.
This research challenges existing geological concepts, indicating Mars may still experience internal movements affecting its surface, including the formation of new volcanic features.